Trolley-ear



w. H. SIEMON AND H. L. GARBUTT.

TROLLEY EAR. APPLICATION FILED 05c. 14. Hill].

Patented Feb. 15, 1921.

lNV 126 y WITNESSES:

ATTdRNEY UNITED STATES WILLIAM H. IEMON AND HARRY L.

GARBUTT, 0F WILKINSBUHG, PENNSYLVANIA,

ASSIGNORS TO WESTINGHQUSE ELECTRIC & MANUFACTURING COMPANY, A GOR- EORATION 0F IE'ENNSYLVANIA.

TROLLEY-EAR.

Specification of Letters Patent.

Patented Feb. 15, 1921.

Application filed December 14. 1918. Serial No. 266,718.

To all whom it may concern:

Be it known that we, lViLLIAM Hsmuson SInMoN, a citizen of the United States, and a resident of l Villrinsburg, in the county of Allegheny and State of Pennsylvania, and HARRY L. GARBUTT, a citizen of the United States and a resident of ilkinsbur g in lb l the county or Allegheny and State of PI11'i sylva-nia, have invented a new and useful Improvement in Trolley-Ears, 01? which the following is a specification.

Our invention relates to trolley ears for attachment to trolley hangers and has for its object to provide yieldable means that shall be integral with a pressed-metal ear whereby a relatively tight joinder may be effected, in any one of several angularlyrelated operative positions between the ear and the hanger, to prevent chattering be tween the latter members and the consequent damage thereto.

The hanger usually embodies oppositely projecting arms for attachment to a guy wire that is disposed at a particular angle with respect to the conductor and, therefore, the final positioning of: the ear with respect to the hanger is determined by the relative directions of the guy wire and the conductor. If, in this relation, the ear and the hanger are not bound tightly together, damage to the threads, caused by the passage of trolleys, may permit chattering between the cooperating threads thereof. and cause the ultimate destruction of the ear and the hanger.

l'leretofore, it has been usual, in certain trolley conducting supporting devices comprising a well known hanger and ear, to provide special and relatively complicated and expensive means connected to the hanger for permitting adjustable binding engagement between the ear and the hanger.

In practising our invention, we provide means for adjustably and bindingly attaching a trolley car to a hanger that shall be integrally associated with the ear in such manner as to require neither additional material, time, skill nor expense than would be required if said means were not present and thus not require the cooperation of a special hanger.

Figure l t the accompanying drawing is a side elevational view of a trolley hanger and acooperating ear embodying our invention; Fig. 2 is a view taken at right an gles to Fig. 1, partially in elevation and partially in mid-section, and Fig. 3 is a plan view of the car.

A hanger 1 may be of usual construction embodying an inverted member 2 of substantially bell-shape having arms 3 for attachment to a guy wire, not shown, and a body oi? insulating material ltherein, a screw threaded depending anchor bolt 5 and a metal wearing portion 6 surrounding the bolt 5 at the surface of the material l and embedded therein.

An ear 7 comprises a pair of duplicate pressed-metal side members 8 that are welded together and have integral lower edge lips 9 to receive a conductor 10. 00111- plementary portions 11 pressed in the members 8 at substantially the central upper portions thereof constitute a polygonal receptacle for a polygonal nut 12 that is held in place by integral projecting portions 13.

The portions 13 are radially disposed around the outer edges of the nut 12, each portion 13 constituting an extension of one of the faces of the polygonal receptacle, and are bent inwardly to positions inclined from the transverse face of the nut 12.

hen the ear 7 is advanced toward its operative position with respect to the hanger 1, by advancing the nut 12 on the bolt 5, the portions 13 engage the hanger 1, and are thereby depressed to firmly bind the bolt 5 and the nut 12 together. Since this binding relation may exist throughout a whole or any portion of a revolution of the ear with respect to the bolt 5, any desired angular relation of the ear to the hanger may together, thereby precluding damage to the threads of the bolt 5 and the nut 12 that would permit relative longitudinal movement and chattering between the latter two members.

While we have shown and described a particular form of our invention, changes may be effected therein, without departing from the spirit and scope thereof, as set forth in the appended claims.

o claim as our invention:

1. In a conductor-supporting device, the combination with a supporting membenof a conductongripping member for adjust able mounting thereon and having an intebe effected while the same are bound gral yieldable portion for compression between said members to permit the same to be bound together and prevented from chattering in any of several relative positions.

2. In a conductor-supporting device, the

combination with a screw-threaded support' justed With respect to, and held in clamped relation on, a supporting member.

4:. pressed-metal trolley ear comprising duplicate side members having complementary recesses pressed therein to constitute a polygonal pocket and a polygonal nut clamped Within said pocket, one of suidside members having a yieldable integral portion constituting means for binding said ear in position on a support.

5. A pressed-metal trolley ear comprising duplicate side members having complementary recesses pressed therein to constitute a polygonal pocket to receive a polygonal nut, said members having integral jaws to receive a trolley conductor and yieldable integral portions constituting binding adjusting means between said ear support.

In testimony whereof, We have hereunto subscribed our names this 30th day of Nov,

WILLIAM H. SIEMON. HARRY L. GARBUTT.

and a cooperating 

